Commitments and Contingencies	9 Months Ended
Commitments and Contingencies	Sep. 30, 2021
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Litigation The Company is a party to various legal actions, proceedings, and claims (some of which are not insured), and regulatory and other governmental audits and investigations in the ordinary course of its business. The Company cannot predict the ultimate outcome of pending litigation, proceedings, and regulatory and other governmental audits and investigations. These matters could potentially subject the Company to sanctions, damages, recoupments, fines, and other penalties. The Department of Justice, Centers for Medicare & Medicaid Services (“CMS”), or other federal and state enforcement and regulatory agencies may conduct additional investigations related to the Company’s businesses in the future that may, either individually or in the aggregate, have a material adverse effect on the Company’s business, financial position, results of operations, and liquidity. To address claims arising out of the Company’s operations, the Company maintains professional malpractice liability insurance and general liability insurance coverages through a number of different programs that are dependent upon such factors as the state where the Company is operating and whether the operations are wholly owned or are operated through a joint venture. For the Company’s wholly owned operations, the Company currently maintains insurance coverages under a combination of policies with a total annual aggregate limit of up to $37.0 million for professional malpractice liability insurance and $40.0 million for general liability insurance. The Company’s insurance for the professional liability coverage is written on a “claims-made” basis, and its commercial general liability coverage is maintained on an “occurrence” basis. These coverages apply after a self-insured retention limit is exceeded. For the Company’s joint venture operations, the Company has designed a separate insurance program that responds to the risks of specific joint ventures. Most of the Company’s joint ventures are insured under a master program with an annual aggregate limit of up to $80.0 million, subject to a sublimit aggregate ranging from $23.0 million to $33.0 million for most joint ventures. The policies are generally written on a “claims-made” basis. Each of these programs has either a deductible or self-insured retention limit. The Company reviews its insurance program annually and may make adjustments to the amount of insurance coverage and self-insured retentions in future years. The Company also maintains umbrella liability insurance covering claims which, due to their nature or amount, are not covered by or not fully covered by the Company’s other insurance policies. These insurance policies also do not generally cover punitive damages and are subject to various deductibles and policy limits. Significant legal actions, as well as the cost and possible lack of available insurance, could subject the Company to substantial uninsured liabilities. In the Company’s opinion, the outcome of these actions, individually or in the aggregate, will not have a material adverse effect on its financial position, results of operations, or cash flows. Healthcare providers are subject to lawsuits under the qui tam provisions of the federal False Claims Act. Qui tam lawsuits typically remain under seal (hence, usually unknown to the defendant) for some time while the government decides whether or not to intervene on behalf of a private qui tam plaintiff (known as a relator) and take the lead in the litigation. These lawsuits can involve significant monetary damages and penalties and award bounties to private plaintiffs who successfully bring the suits. The Company is and has been a defendant in these cases in the past, and may be named as a defendant in similar cases from time to time in the future. Oklahoma City Subpoena. On August 24, 2020, the Company and Select Specialty Hospital – Oklahoma City, Inc. (“SSH–Oklahoma City”) received Civil Investigative Demands from the U.S. Attorney’s Office for the Western District of Oklahoma seeking responses to interrogatories and the production of various documents principally relating to the documentation, billing and reviews of medical services furnished to patients at SSH-Oklahoma City. The Company does not know whether the subpoena has been issued in connection with a qui tam lawsuit or in connection with possible civil, criminal or administrative proceedings by the government. The Company is producing documents in response to the subpoena and intends to fully cooperate with this investigation. At this time, the Company is unable to predict the timing and outcome of this matter. New Jersey Litigation. In December 2020, the United States District Court for the District of New Jersey unsealed a qui tam complaint in the United States of America and State of New Jersey ex rel. Keith A. DiLello, Sr. v. Hackensack Meridian Health, Jersey Shore University Medical Center, Ocean Medical Center, Seaview Orthopaedics, Shrewsbury Surgery Center, Kessler Rehabilitation, Dr. Halambros Demetriades, Dr. Theodore Kutzan, Dr. Adam Myers, Dr. Hoan-Vu Nguyen, Dr. Frederick De Paola, ABC Corporations 1-10, and John/Jane Does 1-10, Case 3:20-cv-02949-FLW-ZNQ. The complaint was filed under seal in March 2020 and was unsealed after the United States and the State of New Jersey declined to intervene in the case. In the complaint, the plaintiff-relator, an automobile accident victim and former patient of the defendant providers, alleges that they routinely billed both personal injury protection (“PIP”) carriers and CMS. He alleges that they violated federal and state law by billing CMS when other insurance is available and failing to return payment to CMS after payment was made by the PIP carriers. In March 2021, defendant Kessler Rehabilitation waived service of process of the complaint. The Company intends to vigorously defend this action, but at this time the Company is unable to predict the timing and outcome of this matter. Physical Therapy Billing. On October 7, 2021, the Company received a one-page letter from a Trial Attorney at the U.S. Department of Justice, Civil Division, Commercial Litigation Branch, Fraud Section (“DOJ”). The letter stated that the DOJ, in conjunction with the U.S. Department of Health and Human Services, is investigating the Company in connection with potential violations of the False Claims Act, 31 U.S.C. § 3729, et seq. The letter specified that the investigation relates to the Company’s billing of physical therapy services. The Company intends to produce documents and data in response to such letter and to fully cooperate with this investigation. At this time, the Company is unable to predict the timing and outcome of this matter. Medicare Dual-Eligible Litigation The Company’s critical illness recovery hospitals have pursued claims against CMS involving denied Medicare bad debt reimbursement for copayments and deductibles of dual-eligible Medicaid beneficiaries for cost reporting periods ending in 2005 through 2010. A U.S. District Court ruled in favor of the Company and ordered CMS to determine and pay the Medicare bad debt reimbursement plus interest and, in February 2021, the Company received reimbursement proceeds of $17.9 million plus accrued interest of $4.7 million. These amounts were recognized as other operating income and interest income, respectively, during the nine months ended September 30, 2021. The amounts paid by CMS were based on its own computation of the Medicare bad debt reimbursement and the Company believed it was owed an additional $2.3 million related to these claims and continued to pursue claims for such amount. In September 2021, the Court ruled in favor of the Company and ordered CMS to pay to the Company an additional $2.3 million. It is not known whether CMS will appeal such decision.